- Agile: space and dynamics abound
- Efficient: drive system with new engines and dual clutch transmission
- Safe: radar-based collision warning system as standard, PRE-SAFE®
featuring for the first time
- Sensational: outstanding aerodynamics set a new benchmark in
Substantially more agile and efficient, but as comfortable and spacious as ever – the new B-Class from Mercedes-Benz is a winner on all fronts. The vehicle’s lower height and more upright seat position provide for a first impression that hints at the compact sports tourer’s dynamic credentials.
The second generation of the B-Class car heralds a new compact class era at Mercedes-Benz in terms of both design and technology. The entire drive programme is completely new: four-cylinder petrol and diesel engines with direct injection and turbocharging, dual clutch transmission and manual transmission. Several new assistance systems support the driver.
“The new-generation is the first model in the history of Mercedes-Benz to have ever seen so many new developments introduced at any one time,” says Eckart Mayer, Vice President, Sales & Marketing, Mercedes-Benz South Africa.
“Our B-Class customers will benefit from this quantum leap in terms of exemplary low fuel consumption and CO2 emissions combined with driving enjoyment, ample space and the highest standard of safety levels available in this class,” adds Mayer.
Fuel consumption: up to 21 percent less than its predecessor
The fuel consumption of the new B-Class undercuts its predecessor by up to 21 percent. All the engines have been developed in-house. Both diesel models now run on 4.4 litres per 100 km (116 – 138 CO2 g/km) – their predecessors required 5.2 litres per 100 km. The B 180 CDI BlueEFFICIENCY attains a CO2 value of 116 g/km with automatic transmission – an improvement of 20 percent on its predecessor (146 g/km). The petrol-engine variants have also made great strides: despite a substantial improvement in performance, the B 180 BlueEFFICIENCY and B 200 BlueEFFICIENCY now run on 5.9 litres per 100 km (138 CO2 g/km), undercutting their predecessors by up to twelve percent.
The exterior design: perfect space in a most attractive guise
The new B-Class is a typical Mercedes sports tourer, offering plenty of space combined with impressive dynamic performance as a hatchback saloon. The characteristic lines of the exterior design indicate both of these attributes: front and rear sport a width-emphasizing design, with a wide, prominent grille and headlamps extending along the sides at the front while the rear end features a wide rear window, two-piece tail lights with horizontally offset meander and a large tailgate with low loading sill.
The new sportiness and the outstanding aerodynamics are particularly evident in the side line: the bonnet flows seamlessly into the A-pillar and the roof line descends sleekly to the striking roof spoiler. The roof features a swage line which lends the vehicle a longer appearance. The pronounced wheel arches offset by dynamic feature lines under the beltline are a sporty interpretation of the current design line from Mercedes-Benz. The bottom edge of the body features dynamic side skirts which lend the vehicle add a light touch to the vehicle’s appearance. Refined details such as the modern-look headlamps with the new spotlight element confirm the brand’s unmistakable premium credentials which shine through in the compact segment, too.
The new B-Class is definitely more spacious and versatile with improved dimensions of: length 4359/width 1786/height 1557 millimetres.
Outstanding aerodynamics: astounding cd value despite station wagon rear end
An outstanding drag coefficient of cd = 0.26 places the new B-Class at the forefront of its market segment. Apart from the aerodynamic exterior design, numerous optimisation measures on points of detail such as the air flow around the front wheels, the underbody design and the cooling air flow are also crucial contributory factors to this excellent aerodynamic performance. Patents are pending for innovative details such as the serrated wheel arch spoiler.
New concept: lower overall height but more space inside
The new vehicle concept underscores the dynamic aspirations of the new B-Class. The most striking aspect is the reduced height: at 1557 millimetres, the new model crouches almost five centimetres lower on the road than its predecessor. The seat height in relation to the road has also been reduced (minus 86 mm).
In response to requests from many customers, the sitting position is more upright. At the same time, the headroom has been further improved. With maximum headroom of 1047 mm at the front (without sliding roof), the B-Class is among the most spacious cars in its segment in this discipline, too. The ergonomically expedient more upright sitting position in combination with a lowering of the vehicle’s floor at the rear leads to a segment-leading degree of legroom (976 mm).
The B-Class is optionally available with the so-called EASY-VARIO-PLUS system. This enables simple reorganisation of the interior so as to enable the transportation of bulky items. Features of the EASY-VARIO-PLUS system include fore/aft adjustment of the rear seats by up to 140 millimetres (thereby increasing the luggage compartment volume from 486 to 666 litres) and a front passenger seat whose backrest can be folded forward onto the seat cushion.
The interior design: superior quality in a new dimension
High-quality materials and finely structured surfaces, stylish details, precision workmanship and a new spaciousness – the interior of the B-Class defines a whole new benchmark in the compact segment.
Many features have been the reserve of higher classes of vehicles and embody Mercedes-Benz’s special understanding of quality and aesthetics. The dashboard is optionally available in ARTICO leather finish with stitching. Three equipment packages (Sports, Exclusive and Night package) enable individualisation according to personal tastes.
In the interior, the large, three-dimensional trim covering the entire dashboard first strikes the eye. It is available in four variants, covering a broad spectrum from modern through sporty to classic. Common to all versions is a high-class appeal combining an attractive look and feel with easy care and durability.
The three large round vents in the middle and their uniquely designed cruciform nozzles add a sporty attribute to the interior’s emotional design idiom. The display, which is available in two sizes (147 and 178 mm) appears to hover over the vents. With its stylish design – the trim frame with galvanised finish contrasting with the piano black of the front panel – and slender lines, the colour display (TFT) is a highly attractive feature in the cockpit.
The 3-spoke steering wheel, which features a silver chrome insert in the middle spoke, the instrument cluster with four analogue round dials and suspended pointers in 6 o’clock position and the seats with contrasting stitching underscore the sporty character.
The drive: designed for maximum efficiency
The new B-Class features new petrol and diesel engines as well as new manual and automatic transmissions. All transmissions and engines have been developed in-house, with production taking place at the plants in Stuttgart-Untertürkheim and -Hedelfingen, Rastatt/Baden, Gaggenau/Baden and Kölleda/Thuringia. The simultaneous development process enabled perfect coordination of engines and transmissions, e.g. with regard to implementation of the ECO start/stop function which features as standard on all B-Class
Common features of the new drive systems are the use of state-of-the-art technologies for maximum efficiency, very smooth running, high tractive power right from low revs, sustainability in terms of impending emissions standards and low weight. For the purposes of transverse installation the engines, all of which are turbocharged, and the two transmissions are very compactly designed, providing the B-Class with an exemplary small turning circle for a front-wheel drive vehicle of eleven metres. The engine and transmission suspension disposes of a four-point mounting system comprising engine mount, transmission mount and two self-aligning supports. This suspension system has been designed specifically to meet the requirements of the high-torque engines with regard to minimum noise levels. The hydraulic damping integrated in the transmission mount is a key contributory factor to the exceptionally high ride comfort.
The new four-cylinder petrol engines mark the launch of a completely new engine series. The combustion process is based on the third-generation Mercedes-Benz direct injection system. Its use in the B-Class marks this technology’s debut in the compact segment. The new four-cylinder engines have been designed for both transverse and longitudinal installation. In the new B-Class they are initially available with a displacement of 1.6 litres, as the B 180 rated at 90 kW and the B 200 with an output of 115 kW. Their maximum torque of 200 and 250 Nm respectively is available from an engine speed of 1250 r/min.
The new four-cylinder diesel engine is the third-generation common rail direct-injection engine. With its displacement of 1.8 litres and numerous optimised points of detail, this is the first time that the compression-ignition engine has been mounted transversely in a Mercedes-Benz car. The B 180 CDI generates 80 kW of power, while the B 200 CDI has an output of 100 kW. The maximum torque stands at 250 Nm from 1400 r/min for the 80 kW variant and 300 Nm from 1600 r/min for the 100 kW variant.
Overview of B-Class engines
at r/minNm at
g/kmB 180 CDI BE4/in-line179680
B 200 CDI BE4/in-line1796100
1600-30009.5 (9.3)210 (210)
B 180 BE4/in-line159590
1250-400010.4 (10.2)190 (190)
137-144 (137-145)B 200 BE4/in-line1595115
1250-40008.6 (8.4)220 (220)5.9-6.2
*BE = BlueEFFICIENCY, figures for manual transmission, 7G-DCT automatic transmission in brackets
Another Mercedes-Benz premiere is the new 7G-DCT dual clutch transmission in the B-Class. This transmission is extremely compact, extremely variable with regard to adaptation of the engine speed thanks to seven gears, features an electric oil pump for start/stop capability, shifts gear without any interruptions in tractive power and combines the comfort of an automatic with the efficiency of a manual transmission.
The new 6-speed manual transmission designed along similarly compact lines as a three-shaft transmission is a close relative of the DCT. Extremely easy gear shifting, low shift forces, low internal friction and a low weight are among its most important characteristics.
The chassis and suspension: refined sportiness now for the sports tourer
“Fascinatingly agile” is the assessment of all test drivers who have put the new B-Class through its paces to date. Three factors are instrumental to the substantially enhanced dynamic performance in comparison to its predecessor, which does not come at the cost of any compromises on comfort: the lowered centre of gravity, the new four-link rear axle and the upgraded ESP® Electronic Stability Programme. A sports suspension is optionally available for further enhanced agility. The centre of gravity has been lowered by a further 20 mm at the front axle and 15 mm at the rear axle compared to the standard suspension. The sports suspension additionally features sports dampers with amplitude-selective damping and a Direct-Steer system to emphasize the car’s sporty character.
Steering: mechanical with electric assistance
The electromechanical steering of the B-Class has been redesigned. The electric motor of the servo assistance system is now located directly on the steering gear as a dual pinion EPS system, thereby optimising the package as a whole. A Direct-Steer system is available in combination with the sports package. The steering ratio becomes noticeably more direct at greater steering angles, enhancing the vehicle’s handling and agility substantially.
The electromechanical steering system makes an important contribution to the vehicle’s overall efficiency, as the steering assist function only requires energy when steering actually takes place.
New assistance and braking system reduces the risk of rear-end collisions
As a world first in the compact segment, the B-Class features a radar-based collision warning system with adaptive Brake Assist as standard, which lowers the risk of rear-end collisions. The COLLISION PREVENTION ASSIST system gives a visual and acoustic warning to alert a possibly distracted driver to identified obstacles, and prepares Brake Assist for the most precise possible braking response. This is initiated as soon as the driver emphatically operates the brake pedal.
In contrast to systems currently on the market in the compact class, the new COLLISION PREVENTION ASSIST brake assist feature is not merely a system intended to minimise minor damage in urban traffic. Rather, this innovative solution is aimed at protecting motorists from typical rear-end collisions in dangerous traffic situations. Mercedes-Benz expects the new safety system to have a significant positive effect on accident statistics.
The democratisation of safety also encompasses an array of other assistance systems which have been adopted into the B-Class from the larger model series. These include:
- Adaptive Highbeam Assist (optional)
- Blind Spot Assist and Lane Keeping Assist (optional)
- ATTENTION ASSIST (standard)
- Active Parking Assist (optional)
- Brake HOLD function (standard)
- Hill Hold function (standard)
- LINGUATRONIC (optional)
- Reversing camera (optional)
- DISTRONIC PLUS (optional)
Premiere in the compact class: PRE-SAFE® available for the first time
The PRE-SAFE® preventive occupant protection system which features in the B-Class is available for the first time in this vehicle category. This represents a further step in the ongoing democratisation of this innovation. Core features of PRE-SAFE® are reversible belt tensioning, the closing of side windows and sliding sunroof in case of critical lateral dynamics and adjustment of the fully electric front passenger seat with memory function to an ideal position for maximum effectiveness of the restraint systems. PRE-SAFE® is always activated in response to critical longitudinal and lateral dynamics and may also be triggered upon intervention by certain assistance functions.
The scope of restraint facilities takes special account of the B-Class’s use as a family car. Great importance has been attached to the safety of the rear occupants. Belt tensioners, belt-force limiters and belt height adjusters come as standard on the outer seats. Rear sidebags are optionally available. Integrated child seats and automatic child seat recognition are available as in the predecessor. Driver and co-driver are provided with new pelvis bags which are able to cover the pelvis and the entire upper part of the body. For head protection, a windowbag is fitted as standard.
COMAND Online multimedia system with internet access
Internet access, the convenient LINGUATRONIC voice control system, two navigation solutions tailored to different budgets, connection for mobile audio devices and an intuitive operating concept – the information and communication systems in the B-Class offers excellent user-friendliness and a superior level of functionality which has been the reserve of higher categories of vehicle to date. It is the new multimedia generation from Mercedes-Benz which delivers these standards. The operating concept featuring the turn/push control in front of the armrest and the control knob on the head unit is also familiar from other Mercedes-Benz model series.
The COMAND Online multimedia system offers internet access. Customers can surf the web as they wish whilst the car is stationary.
All set for the future: modular “ENERGY SPACE” concept
The modular “ENERGY SPACE” concept means that the new B-Class is already designed to accommodate versions with an alternative drive: appropriate interfaces in the body shell enable the main floor panel to be modified and a step to be produced for the versions with alternative drive. An underfloor compartment covering part of the area under the rear bench seat offers space for alternative energy accumulators.
As with all Mercedes-Benz passenger cars, the new B-Class come standard with MobiloDrive 6 years / 120 000 km maintenance contract.
B 180 R 299 600
B 200 R 319 600
B 180 CDI R 325 000
B 200 CDI R 358 000